Datasheet

ON
OFF
C = 1 F
IN
µ
GND
V
IN
V
BATT
C
L
GND
R
L
C
L
V
OUT
SMPS
(see Note A)
GND
TPS22921/22/22B
LOAD
TPS22921, TPS22922, TPS22922B
SLVS749B –NOVEMBER 2008–REVISED MAY 2013 www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
r
ON
AT 1.8 V SLEW RATE QUICK OUTPUT MAX OUTPUT
ENABLE
(TYP) (TYP at 1.8 V) DISCHARGE
(1)
CURRENT
TPS22921 33 mΩ 30 μs No 2 A active high
TPS22922 33 mΩ 30 μs Yes 2 A active high
TPS22922B 33 mΩ 200 μs Yes 2 A active high
(1) This feature discharges the output of the switch to ground through a 120-Ω resistor, preventing the
output from floating.
ORDERING INFORMATION
For package and ordering information, see the Package Option Addendum at the end of this document.
TYPICAL APPLICATION
A. Switched mode power supply
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Product Folder Links: TPS22921 TPS22922 TPS22922B